LFS Toolchain

[Jeremy Huntwork]

Greg Schafer wrote:
>> Also, haven't you noticed that making use of sysroot in pass one 
>> eliminates the scenario that is causing you trouble in pass 2, thereby 
>> removing the need for the patch?
> 
> Huh? Not at all. Please, JH, explain how this is so.

I'm not a gcc internals expert, so I'm not going to try to begin to 
explain all the intricacies on my own. I readily admit that - and I am 
learning a lot as I work through this. What I have published in my home 
directory is not a line for line copy of Ryan's proposed method. I did 
aim to learn the principles of what he was achieving and apply it to 
current trunk in an unobtrusive manner.

What I do know is that the combination of sysroot and macro edits leaves 
us with a compiler in pass1 that is set to link against libc in 
/tools/lib and requires no adjustment or command line modifications to 
do so. Removing the sysroot bits leaves us still dependent on -B and a 
toolchain adjustment. This first build of gcc is able to build the 
second pass without requiring the startfiles patch. In order to explain 
why this is so, I admit, I would have to dig deeper.

> And like I said earlier, the patch is already gone in my dev build - no
> sysroot in sight.

I wasn't aware that you removed it. I'll be taking a look...

--
JH